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Thursday, December 12, 2019

Cloning

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A clone is a group of organisms that are genetically identical. Most clones result from asexual reproduction, a process in which a new organism develops from only one parent. The one process of cloning, called nuclear transfer, replaces the nucleus of an immature egg with a nucleus from another cell. Most of the work with clones is done from cultures…….. When the nucleus has been inserted into the egg cell, the cell is given an electric shock to initiate the development ……An embryo has about thirty or forty usable cells but a culture features an almost endless supply.. Traditionally this is the sperm's role. There are some advantages of different types of clones, such as they are useful for research.


In contrast there are also some disadvantages and different techniques that result from the cloning of different organisms.


The modern era of laboratory cloning began in 158 when F.C. Steward cloned carrot plants from mature single cells placed in a nutrient culture containing hormones. The first cloning of animal cells took place in 164. John B. Gurdon took the nuclei from tadpoles and injected them into unfertilized eggs. When the eggs were incubated, Gurdon discovered that only 1% to % of the eggs had developed into fertile adult toads. The nuclei containing the original parents' genetic information had been destroyed with ultraviolet light. ….Scientists from Switzerland and the U.S. successfully cloned mice using a method similar to Gurdon's, but required one extra step. After the nucleus was taken from the embryos of one type of mouse, they were transferred into the embryos of another mouse who served as the surrogate mother. This mouse went through the birthing process to create the cloned mice. ….In 1 the first human embryos were cloned using a technique that placed individual embryonic cells (blastomeres) in a nutrient culture where the cells then divided into 48 new embryos. Cloning can do many good things for our wild life and for our economy. The process of cloning can save us a lot of money. A crop that is imported to our country can instead be cloned here. It would also make the product cheaper. Cloning would also develop stronger plants, resistant to disease, parasites, and insect damage. …We would also be able to keep a type of animal from overpopulating its environment. We would be able to keep an animal within a controlled number. Another possibility for cloning would be the creation of new organs for someone who is in need of a transplant. The organ could be cloned from someone matching the person's type.


This way people would not need to wait for someone to die to find a replacement organ. These ideas have not been put into effect yet, but that does not mean that they are far away in the future. The ideas for cloning are infinite.


There is no telling what the possibilities can be. Edward Squires, an equine reproduction biologist at Colorado State, says, You could blow your mind thinking about the possibilities. These are just a few of the awesome possibilities in the world of cloning.


Beside the advantages, there are also some of the disadvantages of cloning. Cloning of certain crops will increase the yield and quality. However this will also increase the danger of a disease being able to destroy the entire crop


Ian Wilmut, a researcher in Roslin Scotland says, The more you interfere with reproduction, the more danger there is of things going wrong.


Another possibility for disadvantage of cloning is that people might take advantage of cloning. Of course, a few reasons people might go to the trouble, and so its worth pondering what they think they might accomplish, and what sort of ethical quandaries they might engender. Consider the hypothetical example of the couple who wants to replace a child who has died. The couple doesnt seek to have another child the ordinary way because they feel that cloning would enable them to reproduce, as it were, the lost child. But the unavoidable truth is that they would be producing an entirely different person, a delayed identical twin of that child. Once they understood that, it is unlikely they would persist. ……But couple so persistent in refusing to acknowledge the genetic facts is not likely to be daunted by ethical considerations or legal restrictions either. If our fear is that there could be many couples with that sort of psychology, then we have a great deal more than cloning to worry about.


Is cloning ethical? That is a question that will be with us for a long time. Are there benefits of cloning? The answer to that is a resounding yes. Is there a bad side to cloning? This is another irrefutable affirmative. Should we Clone? This is where things start to get a little shaky. The answer is more of a yea kind of, answer. Most scientists agree that we ought to do more research on clones and even use some of the benefits that come through cloning. However, most scientists also agree that lines should be drawn. ……………………..Where should we raw those lines? Everyone has an opinion in this category and they are all different. The ability is there, at conception, to clone a human. Should this person be allowed to grow and be a genetic backup for the real person. So if the real person was to need a transplant of some organ there would be an exact copy ready and waiting.


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